these 2 derivations will be built:
  /nix/store/w99m0x0dflj6d2rxfa7aw9ydkchylgfp-flake-inputs.drv
  /nix/store/awc58vxjs8as2w05pi37bld7rn9df9hl-check-flake-inputs.drv
building '/nix/store/w99m0x0dflj6d2rxfa7aw9ydkchylgfp-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/w99m0x0dflj6d2rxfa7aw9ydkchylgfp-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building w99m0x0dflj6d2rxfa7aw9ydkchylgfp-flake-inputs.drv
building '/nix/store/awc58vxjs8as2w05pi37bld7rn9df9hl-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/awc58vxjs8as2w05pi37bld7rn9df9hl-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building awc58vxjs8as2w05pi37bld7rn9df9hl-check-flake-inputs.drv